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[PATCH OLK-6.6 00/16] CVE-2026-74559
by Zhang Changzhong 30 Sep '26

30 Sep '26

Albert Huang (1): xsk: Avoid starving the xsk further down the list Fernando Fernandez Mancera (1): xsk: avoid data corruption on cq descriptor number Jason Xing (7): xsk: prevent CQ desync when freeing half-built skbs in xsk_build_skb() xsk: fix use-after-free of xs->skb in xsk_build_skb() free_err path xsk: fix u64 descriptor address truncation on 32-bit architectures xsk: fix buffer leak in xsk_drop_skb() for AF_XDP multi-buffer Tx net: xsk: update tx queue consumer immediately after transmission xsk: drain continuation descs after overflow in xsk_build_skb() xsk: fix xsk_addrs slab leak on multi-buffer error path Maciej Fijalkowski (5): xsk: Use xsk_buff_pool directly for cq functions xsk: Fix immature cq descriptor production xsk: avoid overwriting skb fields for multi-buffer traffic xsk: provide sufficient space in pool->tx_descs xsk: reclaim invalid Tx descriptors in ZC batch path Wang Liang (1): xsk: Fix __xsk_generic_xmit() error code when cq is full Zhang Changzhong (1): Revert "xsk: fix buffer leak in xsk_drop_skb() for AF_XDP multi-buffer Tx" Documentation/networking/af_xdp.rst | 54 ++-- include/net/xdp_sock.h | 8 + include/net/xsk_buff_pool.h | 9 +- net/xdp/xsk.c | 483 +++++++++++++++++++++++++++++++----- net/xdp/xsk_buff_pool.c | 13 +- net/xdp/xsk_queue.h | 77 ++++-- 6 files changed, 533 insertions(+), 111 deletions(-) -- 2.9.5

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[PATCH OLK-5.10 00/14] CVE-2026-74724
by Zhang Changzhong 30 Sep '26

30 Sep '26

Florian Westphal (4): netfilter: ipvs: prepare for hook function reduction netfilter: ipvs: remove unneeded output wrappers netfilter: ipvs: remove unneeded input wrappers netfilter: ipvs: merge ipv4 + ipv6 icmp reply handlers Julian Anastasov (9): ipvs: skip ipv6 extension headers for csum checks ipvs: fix the checksum validations ipvs: fix more places with wrong ipv6 transport offsets ipvs: ensure inner headers in ICMP errors are in headroom ipvs: fix places with wrong packet offsets ipvs: do not mangle ICMP replies for non-first fragments ipvs: avoid out-of-bounds write in ip_vs_nat_icmp ipvs: return the csum validation for forward hook ipvs: revalidate ihl to prevent out-of-bounds access Yizhou Zhao (1): ipvs: fix PMTU for GUE/GRE tunnel ICMP errors include/net/ip6_fib.h | 2 + include/net/ip_vs.h | 38 +++- net/netfilter/ipvs/ip_vs_app.c | 10 +- net/netfilter/ipvs/ip_vs_core.c | 416 +++++++++++++--------------------- net/netfilter/ipvs/ip_vs_proto_sctp.c | 29 ++- net/netfilter/ipvs/ip_vs_proto_tcp.c | 59 +---- net/netfilter/ipvs/ip_vs_proto_udp.c | 64 ++---- net/netfilter/ipvs/ip_vs_xmit.c | 43 +++- 8 files changed, 268 insertions(+), 393 deletions(-) -- 2.9.5

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[PATCH OLK-6.6 0/2] *** CVE-2026-89929 ***
by Zhang Kunbo 30 Sep '26

30 Sep '26

*** BLURB HERE *** Sean Christopherson (1): KVM: nVMX: Decouple INVVPID operand checks from flushing of vpid02 Yosry Ahmed (1): KVM: nVM: Ensure INVVPID is emulated on the correct physical CPU arch/x86/kvm/vmx/nested.c | 52 +++++++++++++++++---------------------- 1 file changed, 22 insertions(+), 30 deletions(-) -- 2.34.1

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[PATCH openEuler-1.0-LTS 0/2] Optimize checkpatch
by Tengda Wu 30 Sep '26

30 Sep '26

Optimize checkpatch to support recognition of Reference and Assisted-by tags. Sasha Levin (1): checkpatch: add support for Assisted-by tag Tengda Wu (1): checkpatch: Add Reference tag to the COMMIT_LOG_LONG_LINE exemption list scripts/checkpatch.pl | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) -- 2.34.1

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[PATCH openEuler-1.0-LTS 0/5] CVE-2026-90049
by JiangJieHua 30 Sep '26

30 Sep '26

Mike Pattrick (2): openvswitch: Fix double reporting of drops in dropwatch openvswitch: Fix overreporting of drops in dropwatch Norbert Szetei (3): openvswitch: only skb_tx_error() a packet we are about to drop net: skbuff: don't skb_tx_error() the source skb in skb_zerocopy() net: skbuff: don't touch shared zerocopy state in skb_tx_error() net/core/skbuff.c | 7 +++++-- net/openvswitch/datapath.c | 21 ++++++++++++++------- 2 files changed, 19 insertions(+), 9 deletions(-) -- 2.33.8

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[PATCH openEuler-1.0-LTS v2] SUNRPC: harden gss_krb5_unwrap_v2 against short tokens
by superdcc97＠163.com 30 Sep '26

30 Sep '26

From: Chris Mason <clm(a)meta.com> mainline inclusion from mainline-v7.3-rc1 commit 6959297aaa9572783d620a226d73c3fb94494888 category: bugfix bugzilla: https://atomgit.com/src-openeuler/kernel/issues/18878 CVE: CVE-2026-89542 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… -------------------------------- gss_krb5_unwrap_v2() reads the EC and RRC header fields at ptr+4 and ptr+6 before validating that the token is at least GSS_KRB5_TOK_HDR_LEN (16) bytes long, and its rotate_left() helper passes buf->len - base to xdr_buf_subsegment() without verifying that base <= buf->len. When a caller hands in a sub-16-byte token, or a token whose declared len leaves base past the end of the buffer, three distinct failures follow: gss_krb5_unwrap_v2(offset, len, buf) ptr = buf->head[0].iov_base + offset ec = *(ptr + 4) /* OOB read on short head */ rrc = *(ptr + 6) /* OOB read on short head */ rotate_left(offset + 16, buf, rrc) xdr_buf_subsegment(buf, &subbuf, base, buf->len - base) /* u32 wrap when base > len */ _rotate_left(&subbuf, shift) shift %= buf->len /* divide-by-zero when base == len */ After decryption, the cleanup arithmetic has the same shape: movelen = min_t(unsigned int, buf->head[0].iov_len, len); movelen -= offset + GSS_KRB5_TOK_HDR_LEN + headskip; BUG_ON(offset + GSS_KRB5_TOK_HDR_LEN + headskip + movelen > buf->head[0].iov_len); The BUG_ON re-adds the value just subtracted, so it reduces to min(A, B) > A and is permanently false; it cannot catch the unsigned underflow of movelen, which then drives a ~UINT_MAX-byte memmove(). Add four defense-in-depth guards inside the unwrap core so it is safe regardless of what its callers validate: - reject tokens with len - offset < GSS_KRB5_TOK_HDR_LEN before touching ptr+4/ptr+6; - bail from rotate_left() when buf->len <= base, covering both the underflow and zero-length cases; - return early from _rotate_left() when buf->len is zero, so the shift %= buf->len modulo cannot fault; - replace the dead BUG_ON with a live check that returns GSS_S_DEFECTIVE_TOKEN before the movelen subtraction. Fixes: de9c17eb4a91 ("gss_krb5: add support for new token formats in rfc4121") Cc: stable(a)vger.kernel.org Assisted-by: kres (claude-opus-4-7) Signed-off-by: Chris Mason <clm(a)meta.com> Reviewed-by: Jeff Layton <jlayton(a)kernel.org> Link: https://patch.msgid.link/20260524010213.557424-5-cel@kernel.org Signed-off-by: Chuck Lever <chuck.lever(a)oracle.com> Conflicts: net/sunrpc/auth_gss/gss_krb5_wrap.c [commit e01b2c79f4af is not backport] Signed-off-by: Dong Chenchen <dongchenchen2(a)huawei.com> --- net/sunrpc/auth_gss/gss_krb5_wrap.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c index b85899bf9d79..33debe19cfa4 100644 --- a/net/sunrpc/auth_gss/gss_krb5_wrap.c +++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c @@ -420,6 +420,8 @@ static void _rotate_left(struct xdr_buf *buf, unsigned int shift) int shifted = 0; int this_shift; + if (!buf->len) + return; shift %= buf->len; while (shifted < shift) { this_shift = min(shift - shifted, LOCAL_BUF_LEN); @@ -432,6 +434,8 @@ static void rotate_left(u32 base, struct xdr_buf *buf, unsigned int shift) { struct xdr_buf subbuf; + if (buf->len <= base) + return; xdr_buf_subsegment(buf, &subbuf, base, buf->len - base); _rotate_left(&subbuf, shift); } @@ -507,6 +511,9 @@ gss_unwrap_kerberos_v2(struct krb5_ctx *kctx, int offset, struct xdr_buf *buf) if (kctx->gk5e->decrypt_v2 == NULL) return GSS_S_FAILURE; + if ((int)buf->len - offset <= GSS_KRB5_TOK_HDR_LEN) + return GSS_S_DEFECTIVE_TOKEN; + ptr = buf->head[0].iov_base + offset; if (be16_to_cpu(*((__be16 *)ptr)) != KG2_TOK_WRAP) @@ -573,9 +580,9 @@ gss_unwrap_kerberos_v2(struct krb5_ctx *kctx, int offset, struct xdr_buf *buf) * head buffer space rather than that actually occupied. */ movelen = min_t(unsigned int, buf->head[0].iov_len, buf->len); + if (movelen < offset + GSS_KRB5_TOK_HDR_LEN + headskip) + return GSS_S_DEFECTIVE_TOKEN; movelen -= offset + GSS_KRB5_TOK_HDR_LEN + headskip; - BUG_ON(offset + GSS_KRB5_TOK_HDR_LEN + headskip + movelen > - buf->head[0].iov_len); memmove(ptr, ptr + GSS_KRB5_TOK_HDR_LEN + headskip, movelen); buf->head[0].iov_len -= GSS_KRB5_TOK_HDR_LEN + headskip; buf->len -= GSS_KRB5_TOK_HDR_LEN + headskip; -- 2.43.0

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[PATCH OLK-5.10 0/2] Backport tracing mainline patches
by Tengda Wu 30 Sep '26

30 Sep '26

Backport tracing mainline patches. Steven Rostedt (1): tracing: Take trace_array reference when opening a tracer options file Tengda Wu (1): tracing: tracing: Fix KABI breakage from trace_options nr_topts field kernel/trace/trace.c | 52 +++++++++++++++++++++++++++++++++++++++++++- kernel/trace/trace.h | 1 + 2 files changed, 52 insertions(+), 1 deletion(-) -- 2.34.1

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[PATCH OLK-6.6 0/2] Backport tracing mainline patches
by Tengda Wu 30 Sep '26

30 Sep '26

Backport tracing mainline patches. Steven Rostedt (1): tracing: Take trace_array reference when opening a tracer options file Tengda Wu (1): tracing: tracing: Fix KABI breakage from trace_options nr_topts field kernel/trace/trace.c | 46 +++++++++++++++++++++++++++++++++++++++++++- kernel/trace/trace.h | 1 + 2 files changed, 46 insertions(+), 1 deletion(-) -- 2.34.1

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[PATCH OLK-5.10 0/2] Optimize checkpatch
by Tengda Wu 30 Sep '26

30 Sep '26

Optimize checkpatch to support recognition of Reference and Assisted-by tags. Sasha Levin (1): checkpatch: add support for Assisted-by tag Tengda Wu (1): checkpatch: Add Reference tag to the COMMIT_LOG_LONG_LINE exemption list scripts/checkpatch.pl | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) -- 2.34.1

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[PATCH OLK-6.6] cifs: call pagecache_isize_extended() in cifs_setsize() when extending
by Cai Xinchen 30 Sep '26

30 Sep '26

From: Frank Sorenson <sorenson(a)redhat.com> mainline inclusion from mainline-v7.3-rc1 commit c510edb9734af1c274d18f4f31a471a166bbc7e8 category: bugfix bugzilla: https://atomgit.com/src-openeuler/kernel/issues/18925 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- cifs_setsize() calls truncate_pagecache() but skips pagecache_isize_extended() on extension. truncate_setsize() shows the correct pattern: i_size_write(inode, newsize); if (newsize > oldsize) pagecache_isize_extended(inode, oldsize, newsize); truncate_pagecache(inode, newsize); pagecache_isize_extended() zeroes the tail of the page straddling old EOF. Without it, dirty bytes in that region can be written back to the server, exposing stale data in the newly extended range. Cc: stable(a)vger.kernel.org Cc: David Howells <dhowells(a)redhat.com> Signed-off-by: Frank Sorenson <sorenson(a)redhat.com> Acked-by: Namjae Jeon <linkinjeon(a)kernel.org> Signed-off-by: Paulo Alcantara <pc(a)manguebit.org> Conflicts: fs/cifs/inode.c fs/smb/client/smb2ops.c [Commit c510edb9734a touched fs/smb/client/inode.c which in this tree is fs/cifs/inode.c. This tree's cifs_setsize() lacks old_size, i_blocks clamping and inode_set_mtime_to_ts(), so only add a local old_size = i_size_read(inode) and the pagecache_isize_extended() call while keeping the existing cifs_i->time reset. Compiled objects skipped: upstream path fs/smb/client/inode.c does not exist in this tree. Add lock in smb3_simple_falloc] Signed-off-by: Cai Xinchen <caixinchen1(a)huawei.com> --- fs/smb/client/inode.c | 4 ++++ fs/smb/client/smb2ops.c | 3 +++ 2 files changed, 7 insertions(+) diff --git a/fs/smb/client/inode.c b/fs/smb/client/inode.c index 71154a0f51c4..d964a1f1e3d9 100644 --- a/fs/smb/client/inode.c +++ b/fs/smb/client/inode.c @@ -2907,13 +2907,17 @@ int cifs_truncate_page(struct address_space *mapping, loff_t from) void cifs_setsize(struct inode *inode, loff_t offset) { struct cifsInodeInfo *cifs_i = CIFS_I(inode); + loff_t old_size; spin_lock(&inode->i_lock); + old_size = i_size_read(inode); i_size_write(inode, offset); spin_unlock(&inode->i_lock); /* Cached inode must be refreshed on truncate */ cifs_i->time = 0; + if (offset > old_size) + pagecache_isize_extended(inode, old_size, offset); truncate_pagecache(inode, offset); } diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c index e70c26104991..91c8eed2e185 100644 --- a/fs/smb/client/smb2ops.c +++ b/fs/smb/client/smb2ops.c @@ -3530,6 +3530,8 @@ static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon, return rc; } + inode_lock(inode); + /* * Extending the file */ @@ -3620,6 +3622,7 @@ static long smb3_simple_falloc(struct file *file, struct cifs_tcon *tcon, rc = 0; out: + inode_unlock(inode); if (rc) trace_smb3_falloc_err(xid, cfile->fid.persistent_fid, tcon->tid, tcon->ses->Suid, off, len, rc); -- 2.18.0.huawei.25

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